The Greenhouse Effect of Air Pollution

5 degrees C during this period, scarce the rate of change has been uneven (Monastersky, February, 1994). Temperatures rose quickly in the early third of this century, then leveled off from 1940 to 1975. They climbed steeply in the 1980s. Some climate experts believe that rising concentrations of carbon dioxide and different greenhouse gases are responsible for some global melting, only can non explain the slow down from 1940 to 1975. It whitethorn have been overdue to a combination of two human constituents: greenhouse heating system and cooling from sulfur pollution, according to this study. Solar or stochastic fluctuations, and oceanic changes shuffling heat from the tropics to the Arctic whitethorn be the cause of 70-year oscillations seen in global temperatures. In 1994, a meeting of hundreds of the world=s scientists reached a consensus that carbon dioxide and other greenhouse gas pollutants represent the most important factor currently altering the climate, and drown out other effects which cause global cooling (Monastersky, September, 1994). The recent study by the Intergovernmental Panel on Climate Change (IPCC) concluded that solar variations and sulfur pollution were too weak to counter the calefacient influence of carbon dioxide, methane, chlorofluorocarbons (CFCs), nitrous oxide, and other heat-trapping gases. Although sulfur droplets and passel from fires reflect sunlight back toward space, such pollutants do not exert a uniform cooling effect because of their irritable distribut

McCurry, J. (1997). Physicians add their warnings to Kyoto summit. The Lancet, 350, p. 1825.

As closely as sea level rises, other global warming effects such as shifts in monsoon systems and severe and inexorable droughts have to be factored into the number of environmental refugees to be expected. A temperature rise of only one degree C, which is expected by the year 2050, could affect monsoon patterns and add to the drought problems. The Indian subcontinent, project to hold 2.1 billion people by 2050, relies on monsoons for 70 percent of its rainfall. The entire Asian-Pacific region is dependent on monsoon rains.

Areas convincible to the effects of severe drought are Federal Mexico, northern Chile, northeastern Brazil, eastern Argentina, the Mediterranean basin, the Sahel, the southerly quarter of Africa, and sectors of the philia and tropical latitudes of Asia, as well as parts of the coupled States, southern Canada, southern Europe, and Australia. These latter four areas produce most of the surplus food that sustains more than 100 Third initiation nations at present.

A report by Almendares, Sierra, Anderson and Epstein (1993) showed how environmental changes may affect the incidence of different vector-borne diseases in Honduras. A vector-borne disease is spread or transmitted from one host to other by a carrier such as an insect. Overgrazing and deforestation have significantly changed the landscape in parts of Honduras. Forests do work a role in the global warming offshoot because tropical rainforests provide a sink for carbon dioxide, which is turn into plant bodies, which in turn helps regulate the Earth=s temperature (Benyus, 1995). Temperatures have increased and rain patterns have changed, too, in Honduras (Almendares, Sierra, Anderson and Epstein, 1993). warming ambient temperatures have decreased the incidence of malaria in southern Honduras, but its incidence has increased in the north as more nonimmune individuals have migrated from the so
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